Bituminous composition



Patented Aug. 26.192 1.

LESTER KIRSCH IBRAUN, OI EVANSTON, ILLINOIS.

IBIETUMINOUS COMPOSITION.

Ho Drawing. Original applic'ation'filed may 8, 1915, Serial No. 26,813.Divided and this application filed December 2, 1918. Serial No. 264,903.

To all it may concern:

Be it known that I, LESTER KIRSCHBRAUN,

a citizen of the United States, residing in the city of Evanston, countyof Cook, and

5 State of Illinois, have invented certain new and useful Improvementsin Bituminous Compositions, of which the following is a specification.

. This application is a division of an original application filed May8th,;1915, Serial This invention relates to improvements in bituminouscompositions and refers more particularly to a composition adapted foruse in waterproof flooring, coverings, paints and the like, although inits broader aspects the invention is not limited to any specific use.

Among the salient objects of the invention are to provide a waterproofbituminous composition which can be laid cold and which forms aresilient, sanitary, rubbery and durable covering; to provide acomposition which can be readily laid without the necessity of heatingthe material, which quickly and permanently sets, which can be laidwithout the use of relatively expensive vehicles, such as naphthas,benzene and the like; to provide a constructionwhich can be readily,easily and cheaply formed with a colorin which imparts an ornamentaleffect as esired; to provide a composition which is easily washed andcleaned or repaired; to provide a composition which in addition to beingpliable, and suitable for flooring and the like, is also readily adaptedfor use as a paint.

Describing now the manner of making my improved bituminous composition,I preferably prepare an aqueous paste, which may be prepared by paddlingclay or other ma; terial which has ,a substantial percentage of matterof colloidal character. After this paste or vehicle has been worked upto a sufficiently thin consistency, I then add. a bitumen in a fluidcondition. This bitumen i may be either natural or artificial asphaltora prepared asphaltic cement, coal tar tures. jsf'bitumen may beeither-used as pitch, or pitch such as resin and the like,

it is naturally, or with .temperin oils, such as petroleum residuum,linseed oi and anal-- ogous oils. The bitumen must be first softened byheat to a practically liquid condItlOIL In other words, the bitumen mustbe sufiiciently fluid to properly amalgamate and become intimatelyassociated with the paste particles. The bitumen may be mixed with thepaste by stirring the two together until they become thoroughlyamalgamated with each other and of course when the aqueous paste ismixed with a molten liquid bitumen, i. e., one which is solid atatmospheric temperature, the paste becomes heated. Preferably, this'isdone by grindin them together. This mixture forms in e ect an emulsifiedbituminous matrix. Water is then added to this emulsified mixture tofurther thin it. This could be done for the reason-that the water is inthe external phase and the particles of bitumen finely dispersed throughthe water in the internal phase as is well known. to those familiar withemulsions. Fibrous filler is then added to the matrix as desired, andthoroughly incorporated with the same. This canbe done in a well knownform of mixing machine.

The fibrous material may consist of leather waste, paper wood pulp, or'the like. When used as a fioor composition, it' is spread over the floorin a relatively'thin sheet in substantially the same way as Portlandcement mortar. It isto benoteol that when so used the composition may bespread cold and troweled and finished to a. smooth even surface. As thewater evaporates, the particles of bitumen attach themselves to the 90non-bituminous matter and form a un1tary\ structure. When it is notnecessary to produce a monolithic structure, a composition. may beformed on a suitable support in 'a relatively thin sheet and the bitumenala lowed to coalesce prior to its application to the floor. When usedas a waterproof cov ering such as roofing or siding, the compo sitionmay beapplied in the way above describe Y a 100 When used as a paint, itis simply spread; over the surface with abrush as is the ordinary paint.Upon the evaporation of the water an insoluble waterproof. film is left.

I have heretofore stated that my composition maybe given any desiredcoloring by the addition of a pigment. It should be here said however,that it is preferable,

5 where a bri' ht color' is desired, that the bitumen use be a resin ascontra-d1st1n-,

shall be colored as little as possible, in order to obtain the fulleffect of the admixed pigvment. The bituminous cementin this case, maybe for example, formed of 60 per cent wax tailings and 40 per cent ofrosin. Lin sedoil'may be added to the above mixture and partially orentirely displace the use of wax tailings. Incertain cases asphalt mightstill be used, as for example, when a gray or brown color is desired andthis can be obtained by mixing asphalt, wax tailings, and resin inproportions of 20 per cent asphalt, per cent rosin. and 50 per cent waxtailings. i

I claim as my invention:

1. A bituminous stock capable of being formed into a relatively thinsheet in an aqueous vehicle and comprising an emulsified matrix formedof a waterproof adhesive bituminous binder and an emulsifying agent andwater, the water being in the ,external phase, and comminuted fibreintimatel mixed with said matrix.

2. X bituminousstock capable of being sifying'agent containing'colloidal clay and water, thelatter constituting the external phase andthe binder the internal phase.

4. An' emulsified matrix capable of being thinnedwith water andconsisting essentially of a pitchy binder, an emulsifying agentcontaining colcidal inorganic particles and water, the latterconstituting asthe external phase and, the pitchy binder the internalphase. y

-5. A moist and plastic composition caaid of heat and merely btheaddi-tion of water thereto, made of itumen (pitc iferous substancebrought to a fluid condition by water the twofluids being mixed whileheated and being thoroughly stirred until emulsified, the heat beingsuch that the moisture .is not driven off or evaporated from themixture.

argi formed into a relatively thm sheet in an pable of being' renderedfluid without the brought to a fluid condition' by heat, ha}

of being rendered fluid without the aid of heat and merely by theaddition of water thereto, made of bitumen brought to a fluid condition,an argilliferous substance brought to a fluid condition by. water thetwo fluids being mixed until emulsified, the heat being such that themoisture is not driven off or evaporated from the mixture.

7. A moist and lastic composition capable of being ren ered fluidwithout the aid of heat and merely by" the addition of water thereto,made of bitumen brought to a fluid condition, an argilliferous substancebrought to a fluid condition by water the two fluids being mixed untilemulsified.

8. A moist and plastic composition ca.- pable of being rendered fluidwithout the aid of heat and merely by the addition of water thereto,made of bitumen brought to a fluid condition by heat, an argilliferoussubstance brought to a fluid condition by water, the two fluids beingmixed until emulsified.

9. An emulsified matrix eonsistin of a solid bitumen which liquefieswhen eated,

an argilliferous substance and water, all

thoroughly emulsified, the bitumen constituting the disperse phase ofthe emulsion and the non-adhesive matrix possessing the property ofbeingthinned by the application of water to the emulsion without the aidof heat.

1'0. A moist and plastic composition made of a non-liquid bitumenbrought to a fluid condition, an argillifero'us substance brought to 'afluid condition by water, the two fluids being mixed until emulsified,and? an additional quantity of water then incorporated with thematerials to render the composition fluid without the additio f heat.

11. An emulsion of bitume n fii an aqueous, medium containing clay, saidispersed in bitumen being of a consistency normally solidat oi'dinaryatmospheric temperatures so as to require liquefaction bv heat topermit. emulsification thereof, the bitumen becoming substantially solidin the finished emulsion at, normal atmospheric tempera-' ing solid atnormal atmospheric temperatures so as to require liquefaction by heat topermit emulsification and dispersion thereof, bitumen, being. solid inthe finished emulsion at normal atmospheric temperatures. A

13. A bituminous stock capable of being formed into a relatively thmsheet in an aqueous vehicle, comprising an emulsified matrix formed ofawaterproof adhesive. bituminous binder, solid at atmospheric temandcapable of being used without the (j. A moist and plastic compositioncapable perature,v and of such a character as torequire liquefaction byheat for the purpose as to require li uefaction by heat for the ofemulsification, clay of colloidal character purpose of em sificatipn, anargillaceous and water in the external phase. emulsifyin agent andwater, the" latter e'on- 10 14. An emulsified matrix capable ofbestituting t e external phase and the pitchy 5 ing thinned with waterand. consisting esbinder the internal phase.

sentially of a pitchy binder-solid at atmos- I pheric temperature, andof such a vcharacter LESTER KIRSOHBRAUN.

